Solid State Logic SSL XLogic Alpha VHD Pre 4-Ch Mic Pre #2,Solid State Logic Alpha VHD Pre (USED) – BAKU Pro Audio,Solid State Logic SSL XLogic Alpha VHD Pre 4-Channel Mic,SSL Alpha VHD-Pre 4-Channel Microphone Preamp - Perfect Circuit,Solid State Logic SSL XLogic Alpha VHD Pre 4-Ch Mic Pre #1